Why flies fly into a room easily but not easily

Flies feed on spoilage organic matter, so they are commonly found in unhygienic environments. Flies have licking and sucking mouthparts, which can contaminate food and spread diseases such as dysentery.

The flies smell and fly in. Get out. It's hard. Headless flies fly everywhere.

Flies come in from the smell coming in from your doors and windows.

When I went out, there was no smell guide, so I had to recognize the direction of the light, so I always hit the glass and couldn't get out.

1. It may be that you have created an atmosphere that is too warm - flies like to live in places around 30 degrees, especially when the temperature outside the room is very low.

If there are still flies willing to share your ups and downs in the summer, check the trash can......Looking at it from another angle, we can't be sure whether the flies flying in from the outside were unintentional or intentional. However, when the fly was about to go out again, the six-sided predicament made it difficult for it, accustomed to infinite space, to find the right way out - just look at the warriors who were frantically pounced in front of the glass windows.

2. Let's make two assumptions:

First, the movement of flies is largely random;

2. The average density of flies outdoors is greater than that of indoors. If we agree with these two assumptions, we can conclude the following:

When the window is open, the first hypothesis shows that the mathematical expectation of the number of flies flying into the room through the window from the outside is proportional to the density of the flies outside, and similarly, the expectation of the number of flies flying from the inside out is proportional to the density of the flies indoors, and the proportional coefficient of the two is approximately equal. Based on the second hypothesis, we know that the expectation value of flies flying from the outside to the inside is greater than the expectation value of flies flying from the inside out, which causes the expectation of fly flow from the outside in, that is, the fly flies in and it is easy to fly out.

Alternatively, flies can be seen as ideal gas molecules (i.e., regardless of their interaction with each other), a less dense bottle of gas indoors and a denser gas outdoors. When the bottle is connected to the outside world, the diffusion density of the gases inside and outside the bottle tends to be equal, and the second hypothesis tells us that such a change will increase the density of flies in the room. The phenomenon is that flies are easy to fly indoors but not out.

3. It can be explained by "Murphy's theorem": if something bad is likely to happen, then it will happen.

Let's say we have a fly, and then there are two windows, then each window has a 50% chance of getting into a fly. However, for a particular window, as long as flies come in this window, it is a 100% chance for the people in the house, because the people themselves are not impressed by the good things, but the bad things are still freshly remembered, and in the long run, everyone will feel that the flies are easy to enter the house.

4. Usually when a fly smells its favorite scent, it will fly into the room against the weak air flow at the entrance, and generally they are not willing to leave a place that can provide them with delicious (even if it tastes okay) food, unless the food is scarce or alarms people, they will be forced to fly out to find a new location. It doesn't really matter why and how flies get indoors, one of the important questions is that there is a price to be paid for an insecure indoor fly to become its once free self outdoors, and one of the costs is that it will be more of our attention.

That's because it doesn't want to fly out.

Flies are common in the home, especially those that always circle around people, and some will fly directly to your face or head. But if you reach out and shoot it, you often can't shoot it, and the flies react too quickly. So why is that?

Flies always fly overhead, which is why flies rely on temperature to find their preferred environment. The body temperature of 37 degrees is ideal for flies. Flies especially like the smell of sweat on people's bodies, but people's heads are rich in sweat glands and have a high body temperature, which is one of the places where it is easy to sweat and the temperature is relatively high.

Human sweat contains large amounts of amino acids, lactic acid, and ammonia compounds. Flies are very sensitive to this. Once they smell the substances, they are especially excited and want to stay here.

Therefore, changing clothes frequently and bathing frequently in summer is an effective way to reduce this disturbance. You can also spray yourself with disinfectant alcohol or liquor, and flies will stay away when they smell this smell. Plus, having some mint flowers in the house can get rid of flies!

Why can't people beat flies? The fly's sense of smell is extremely well developed and keen. Its olfactory organ collects all kinds of air odors very well, which means that our scents have long been discovered by flies, challenging our speed to entertain us.

The main flight structures of flies include exoskeletons and flight muscles. Flies flap their wings with an "8" motion as they fly. This flapping method allows the air around the wings to form a vortex current, which helps flies to fly easily, converting air resistance into flight power.

The compound eye located on the head of the fly can perceive the surrounding environment in 360 degrees, and the body hair can also sense changes in air mobility. A hundred milliseconds after sensing the threat, the fly's brain can already react, calculating the optimal escape angle and route. Currently, flies have the fastest visual processing system among known organisms.

The fly also has a miniature balancer and something called a balance bar that can vibrate 330 times per second, allowing the fly to maintain balance during flight and react quickly when attacked by the outside world.

It's because you didn't choose a good time when you hit the fly, you have to hit it hard when it's not paying attention.

Flies are difficult to swatt, mainly because flies have two compound eyes. Its temporal resolution and field of view are much higher than that of the human eye, and the field of view of the compound eye is relatively large, no matter which direction you start, the fly will fly away quickly.

It's because your hands are too slow, the flies have already flown away, and you can't kill the flies accurately.

1. The respiratory system of flies is very small and fragile, and it needs continuous clean air**, which can burn incense to eliminate flies, and the smoke and fragrance emitted by incense sticks will numb flies and gradually die.

2. In wet places, places with water and soil should be inspected, cleaned and sprayed with pesticides.

3. Using a fly swatter, the current inside will directly electrocute the fly, because the fly can feel the change of airflow, and the design of the mesh will greatly improve the efficiency.

4. Put the sticky fly paper in the place where flies often appear, the smell of sticky fly paper will attract flies to come, and then stick the flies on it.

1.It means that there is a problem with the living environment.

Flies are dirty insects that usually breed in garbage heaps, droppings, and rotting food, and their presence can indicate a problem with your living environment. If flies fly into your room, it may indicate that there is a hygiene problem in your home, such as a contaminated kitchen, a garbage bin that has not been cleaned in time, etc.

2.Perhaps a bad omen.

In many cultures, flies are often associated with corruption, death, and disease. Therefore, when a fly flies into a room, some people may see it as a bad omen that could indicate a lack of health or a problem with a life situation.

3.It could be a problem with the window or doorway.

Flies tend to enter rooms through doorways or windows. If you often find flies in the house, it may be because the doors and windows are poorly sealed, or you are not opening them at the right time. Improving the tightness of your windows and doors, as well as opening windows for ventilation in a timely manner, can help you keep flies out of your room.

4.You are reminded to pay attention to personal hygiene.

Flies are insects that easily carry bacteria and viruses. Therefore, letting flies fly into the room may also be a reminder to pay attention to personal hygiene. You should keep it clean and avoid letting rotten food or garbage smell off.

Also, clean the room from dust and clutter at all times to prevent flies and other insects from entering and breeding.

5.Practical ways to cope.

If flies have already entered your room, there are a few things you can do to keep them out. Among them, the more commonly used is to use fly swatters, traps and other items to drive away flies. In addition, you can also hang fly paper or spray mosquito repellent to avoid flies approaching.

6.Get to the root cause and solve the problem.

If you notice that flies are flying into your room more frequently, it could mean that there is a serious hygiene problem or that doors and windows are poorly sealed. Therefore, you need to find the root cause and solve the problem in time. Paying attention to personal hygiene, cleaning the room regularly, and improving the sealing of doors and windows are all ways to help reduce the entry of flies into the room.

7.It is better to prevent it before it happens.

Flies are one of the main spreaders of diseases and health threats that are easy to traverse and difficult to control. While keeping the environment clean, we should also pay attention to finding new prevention techniques, such as using better measures in food storage and handling. This is an important aspect of ensuring the safety and health of our living environment.

8.Conclusion.

Flies entering a room can be a sign of many hygiene and life problems. We must be aware of this problem and take steps to solve it. Regular cleaning and disinfection and taking steps to keep the environment clean and hygienic conditions ideal can help reduce the chances of flies entering the room.

Flies come in from the smell of the doors and windows of the house, and when they go out, there is no smell guide, so they have to recognize the direction of the light, so they always hit the glass and can't get out.

The feeding habits of the fly are very mixed, fragrant, sweet, sour, smelly are liked, it has to spit out the bursal fluid to dissolve the food when eating, and its habit is to eat, spit and pull at the same time. It has been observed that flies have to defecate 4 5 times per minute when food is abundant.

Flies eat bacteria that are not good for them at the same time, so the method of "eating and spitting" helps to quickly eliminate bacteria. In general, it only takes 7 to 11 seconds for flies to eat and process, absorb nutrients and excrete waste.

Flies are sometimes in the vicinity of doors and windows, and when people open the doors, open the windows, they come in.

Especially when it's cold, they come in deliberately.

And if you don't want to go out, even if you chase them, it's hard to get out.

Have you ever thought that flies are coming out of your house.

Flies are produced in places where there are more dirty bacteria.

Usually, if you pay attention to cleaning and love to be clean, flies and other things will not come to your house.

Flies don't come out of people's houses, and flies don't bite eggs.

There are ways to prevent flies from flying around the room:

1. Larvicide:

Highly effective larvicides are mainly used in the larval stage of fly development, and the effect can be seen after 2 weeks of application, and these insecticides can be sprayed directly on the manure of livestock and poultry houses or sprayed on the ground after the manure has been removed.

2. Biological prevention and control

The biological control of flies is to cultivate the natural enemies of flies in feces, including beetles, mites and wasps, etc., and under natural circumstances, there are few natural enemies of flies in feces. Drying livestock and poultry manure is conducive to the growth of natural enemies of flies.

Fly hazards:

Flies can transmit 50 kinds of diseases, among which important diseases that have an impact on livestock and poultry breeding such as avian influenza, Newcastle disease, foot-and-mouth disease, swine fever, avian multocidal pasteurellosis, avian colibacillosis, coccidiosis, etc., flies can accelerate the spread of epidemic diseases in disease outbreaks. A large number of flies in the house can cause irritability and contaminate the eggshells.

The activity of maggots in the feces can lead to an increase in the ammonia content in the poultry house, affect the production performance of the chickens, and can also lead to mental restlessness of the livestock, and the body of the herd rubs against each other, bites each other, etc., resulting in damage to the appearance and reducing the grade of meat.